libgomp/testsuite/libgomp.oacc-c-c++-common/loop-wv-1.c

   1 /* { dg-additional-options "-fopt-info-note-omp" }
   2    { dg-additional-options "--param=openacc-privatization=noisy" }
   3    { dg-additional-options "-foffload=-fopt-info-note-omp" }
   4    { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
   5    for testing/documenting aspects of that functionality.  */
   6
   7 #include <stdio.h>
   8 #include <openacc.h>
   9 #include <gomp-constants.h>
  10
  11 #define N (32*32*32+17)
  12 int main ()
  13 {
  14   int ary[N];
  15   int ix;
  16   int exit = 0;
  17   int ondev = 0;
  18   int workersize, vectorsize;
  19
  20   for (ix = 0; ix < N;ix++)
  21     ary[ix] = -1;
  22
  23 #define NW 32
  24 #define VL 32
  25 #pragma acc parallel num_workers(NW) vector_length(VL) \
  26             copy(ary) copy(ondev)
  27   /* { dg-note {variable 'ix' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  28   {
  29 #pragma acc loop worker vector
  30     /* { dg-note {variable 'ix' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  31     /* { dg-note {variable 'g' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-2 } */
  32     /* { dg-note {variable 'w' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-3 } */
  33     /* { dg-note {variable 'v' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-4 } */
  34     for (unsigned ix = 0; ix < N; ix++)
  35       {
  36         if (acc_on_device (acc_device_not_host))
  37           {
  38             int g, w, v;
  39
  40             g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
  41             w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
  42             v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
  43             ary[ix] = (g << 16) | (w << 8) | v;
  44             ondev = 1;
  45           }
  46         else
  47           ary[ix] = ix;
  48       }
  49   }
  50   workersize = NW;
  51   vectorsize = VL;
  52 #ifdef ACC_DEVICE_TYPE_radeon
  53   /* AMD GCN has an upper limit of 'num_workers(16)'.  */
  54   if (workersize > 16)
  55     workersize = 16;
  56   /* AMD GCN uses the autovectorizer for the vector dimension: the use
  57      of a function call in vector-partitioned code in this test is not
  58      currently supported.  */
  59   vectorsize = 1;
  60 #endif
  61
  62   for (ix = 0; ix < N; ix++)
  63     {
  64       int expected = ix;
  65       if(ondev)
  66         {
  67           int g = 0;
  68           int w = (ix / vectorsize) % workersize;
  69           int v = ix % vectorsize;
  70
  71           expected = (g << 16) | (w << 8) | v;
  72         }
  73
  74       if (ary[ix] != expected)
  75         {
  76           exit = 1;
  77           printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
  78         }
  79     }
  80
  81   return exit;
  82 }